A smoke detector is an electronic fire-protection device that automatically senses the presence of smoke as a key indicator of fire and crea

Question

A smoke detector is an electronic fire-protection device that automatically senses the presence of smoke as a key indicator of fire and creates a loud sound as a warning. In 3-5 sentences, describe what is happening inside a photoelectric smoke detector as soon as smoke enters it

in progress 0
Xavia 5 years 2021-08-11T14:44:14+00:00 1 Answers 20 views 0

Answers ( )

    0
    2021-08-11T14:45:31+00:00

    Answer:

    Photoelectric-type alarms aim a light source into a sensing chamber at an angle away from the sensor. Smoke enters the chamber, reflecting light onto the light sensor; triggering the alarm.

    Explanation:

    nfpa.org is the website with theanswer

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )